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Fixes #730
The most basic of these already had translations added, and the Slang approach to cross-compilation made adding the new ones almost trivial. I also took the time to confirm that using "operator comma" for the sequencing (since the single HLSL function call needs to expand to a sequence of GLSL function calls) works fine with glslang.
I added a test case to confirm that all of these operations can compile down to SPIR-V.
I am not personally confident that these translations are perfect, but they are based on what was [linked](https://anteru.net/blog/2016/mapping-between-hlsl-and-glsl/index.html) from #730. The one difference is where that blog post was listing `memoryBarrierImage, memoryBarrierImage` I assumed they meant `memoryBarrierImage, memoryBarrierBuffer`.
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